Opportunities tend to present themselves in clusters. And as much as you'd like to be able to take them all on, you may have to say no to some of them. These opportunities may be one-time things, or they may be ongoing commitments. In the thrill and excitement of the moment, it's easy to just say yes and (over)commit …

Despite the proliferation and availability of information, good information is hard to come by. Finding the right data is often a matter of quickly dismissing sources of bad data, allowing the cream to rise to the top. To speed up this process, I've created the following list of sources that I've found to consistently …

Note: This is a previously unpublished post I wrote in early 2020. I'm posting it now (late 2022) as a reminder that critical thinking based on existing scientific knowledge turned out to be right, while the "experts" were wrong. Your worldview matters. The "experts'" by and large operate on an …

2022 Update: If you want a clear technical explanation of the OSI model, click on the cover of my book CCNP Enterprise Certification Study Guide: Implementing and Operating Cisco Enterprise Network Core Technologies for a free preview of Chapter 1 which explains each layer of the OSI model in intricate detail. I …